I have been trying to figure this out for a long time. I was very young when I watched this so it could be a little mixed up.

A man is jogging in daylight down a path or road near the woods and a creature is watching him.I think that the guy may have been a little chunky and stops to eat a twinkie .the creature reminded me of the creatures from Labyrinth who pop their body parts off and connect them to other parts.I watched this in the 80's and believe it may have been some kind of television show but I am not sure..